Saint John of Kronstadt, born as Ivan Ilyitch Sergieff, the son of poor peasant folk, was born on the 19th of October 1829 in the little village of Soura, in the province of Arkhangelsk in the far north of Russia. His parents, poor and simple though they were, took great pains with his education, both spiritual and temporal. From school, where he had gone to the top of his class, he went to the seminary. From there he was sent in 1851, at government expense, to the Theological Academy of Saint Petersburg. While he was there his father died, and it was with great thankfulness to God that he accepted the post of registrar.
Having considered becoming a monk, and going to eastern Siberia as a missionary, he came to the conclusion that there were many people around him as unenlightened as any pagan, and he decided to work for their salvation, after a dream in answer to prayer, in which he saw himself officiating in some unknown cathedral.
Soon after completing his studies he married Elisabeth, daughter of the Archpriest K. P. Nevitzki, and he was ordained priest in December 1855. Appointed as assistant priest at Saint Andrew's Cathedral, Kronstadt, when he entered it for the first time he recognized it as the church he had seen in his dream; and there, first as curate, and afterwards as rector, he served throughout the fifty-three years of his ministry. Cherishing a lofty ideal of the priestly vocation, he continued nightly to study and pray that he might perfect himself in it, while during the day he devoted himself to the many poor of his parish.
Father John, whose predecessors, apparently, had hardly even dared to penetrate the worst parts of the town, spent much of his time there, striving to heal bodies and souls alike, attracting to himself first the children, and then, through them, their parents. Often he found no time to eat until the late evening, and even then he would sometimes be summoned out again, and not return before the small hours; he gave away his own shoes, he gave away the housekeeping money: his wife gradually accustomed herself to it, and finally became something like his keeper.
In 1857 he was invited to teach the scripture in the municipal school at Kronstadt, and he accepted with joy, for he loved children, and always took great pains with them. When his fame had spread and he was constantly visiting Saint Petersburg, then to his own, his colleagues and pupils great regret, he was forced to abandon his teaching post.
Another object of Father John's concern and labor was the removal of the widespread poverty that afflicted Kronstadt. At first he gave these beggars money for food and shelter, but he soon came to see that this was not merely useless, but positively harmful. In 1868 he conceived the idea of founding a House of Industry, comprising a number of workshops, a dormitory, a refectory, a dispensary, and a primary school. He formed a committee, and appealed for funds. His appeal was answered by rich and poor from all over Russia, and the House of Industry was founded in 1873. Father John administered a total of over $25,000 a year in numerous charities, half of it in Kronstadt.
There is an attractive power in the personality of Father John of Kronstadt, in his portrait, the magnetism of his writings, and in his diary My Life in Christ. There is a peaceful and consoling quality in the notes of his diary, not to mention the very subjects of his talks, which spiritually exalt, uplift, and strengthen.
In the early 1890s Father John became well known, and people from all over Russia came to him every day in thousands. The bishops treated him with high respect. He was already greatly venerated at the time he died, on 20 December 1908.
He was canonized by the Russian Orthodox Church Outside Russia in 1964, and by the Russian Orthodox Church in 1990. Archbishop John Maximovitch of Shanghai and San Francisco (later glorified as a Saint too) played an active role in preparation of St. John's canonization. His life and work are commemorated on the feast days of December 20 and October 19. (Source)
"When you are praying alone, and your spirit is dejected, and you are wearied and oppressed by your loneliness, remember then, as always, that God the Trinity looks upon you with eyes brighter than the sun; also all the angels, your own Guardian Angel, and all the Saints of God. Truly they do; for they are all one in God, and where God is, there are they also. Where the sun is, thither also are directed all its rays. Try to understand what this means."
"There is nothing impossible unto those who believe; lively and unshaken faith can accomplish great miracles in the twinkling of an eye. Besides, even without our sincere and firm faith, miracles are accomplished, such as the miracles of the sacraments; for God's Mystery is always accomplished, even though we were incredulous or unbelieving at the time of its celebration. "Shall their unbelief make the faith of God without effect?" (Rom. 3:3). Our wickedness shall not overpower the unspeakable goodness and mercy of God; our dullness shall not overpower God's wisdom, nor our infirmity God's omnipotence."
"Oh, what great happiness and bliss, what exaltation it is to address oneself to the Eternal Father. Always, without fail, value this joy which has been accorded to you by God's infinite grace and do not forget it during your prayers; God, the angels and God's holy men listen to you."
"The enemy of our salvation especially strives to draw our heart and mind away from God when we are about to serve Him, and endeavours to adulterously attach our heart to something irrelevant. Be always, every moment, with God, especially when you pray to Him. If you are inconstant, you will fall away from life, and will cast yourself into sorrow and straitness."
"Do not be despondent when fighting against the incorporeal enemy, but even in the midst of your afflictions and oppression praise the Lord, Who has found you worthy to suffer for Him, by struggling against the subtlety of the serpent, and to be wounded for Him at every hour; for had you not lived piously, and endeavored to become united to God, the enemy would not have attacked and tormented you."
"Do not fear the conflict, and do not flee from it; where there is no struggle, there is no virtue. Our faith, trust, and love are proved and revealed in adversities, that is, in difficult and grievous outward and inward circumstances, during sickness, sorrow, and privations."
"Prayer for others is very beneficial to the man himself who prays; it purifies the heart, strengthens faith and hope in God, and arouses love for God and our neighbor."